In nature animal species often exist in groups. We talk of insect swarms, flocks
of birds, packs of lions, herds of wildebeest etc. These are characterised by
individuals interacting by following their own rules, privy ...

In nature animal species often exist in groups. We talk of insect swarms, flocks
of birds, packs of lions, herds of wildebeest etc. These are characterised by
individuals interacting by following their own rules, privy ...